问题
选择题
We are taught that a business letter should be written in a formal style __ in a personal one.
A．rather than
B．better than
C．more than
D．less than
答案
答案：A
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We are taught that a business letter should be written in a formal style __ in a personal one.
A．rather than
B．better than
C．more than
D．less than
答案：A